Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711243427%7.1Harden
Average Character0.0053984164041%1.9Easyen
Black and White0.1359237616544%4.9Mediumen
Circle Bounce0.0020019910854%4.8Mediumen
Diagonals0.0018531886736%5.9Harden
Dorm Room Divide0.03580132016813%6.9Harden
Double Password0.0053983228957%1.6Easyen
Fail Them All!0.0089943610624%8.2Harden
Hopscotch 5000.1187862613321%7.4Harden
Overdraft0.0052748113441%2.2Easyen
Problem Set Construction0.01940573460%7.0Harden
Reversibly Cyclic Strings0.00561427845%3.3Mediumen
Rise and Fall0.008891623626%4.5Mediumen
Scaling Recipe0.005172180847%2.0Easyen
Shortest Missing Subsequences0.0939432410833%5.8Harden
Square Bounce0.005031545435%6.1Harden
Tetris Generation0.0090113828825%5.8Harden
Tournament Seeding0.0322048121444%4.1Mediumen
Tree Hopping0.0289388427131%6.2Harden
Who Goes There?0.00119107936334%4.1Mediumen
XOR Island0.002912228940%6.7Harden